Jhuni Istamrar is a village in Krityanand Nagar tehsil in district of Purnia, Bihar, India. As per the data provided by Census of India in 2011, total population of Jhuni Istamrar was 4,902 which includes 2,500 males and 2,402 females. Jhuni Istamrar covers 400 ha area. Pincode of Jhuni Istamrar is N/A.